The curiously-named "iron butterfly" is a complex strategy offering limited losses and limited profits. It is an expanded version of the basic butterfly (two separate spreads offsetting one another). The "iron" version is a combined straddle consisting of four options instead of the butterfly's three.
An iron butterfly can be either long or short. The long version consists of a long call and long put at the same strike; and a lower-strike short put plus higher-strike short call. For example, a co